Pan Am had a bunch of those humvees for a few years. They used a few at Waterville and Rigby to shuttle crews as well as the yard master around. But as others have pointed out, parts aren't the easiest to come by. The last time I saw one, was at Waterville when they were scrapping the EMD's. And it was under the pile of assorted GP40 components.
As for the job openings, those are the same ones that have been posted for a while under the Pan Am website. By the looks they want to use the same union contract, which it will be hard to hire anyone new when the starting wage is a bit over $25 a hour and after four years you will only be making $34-35. Several railroads in the area are paying $36 as a starting wage in comparison to the $25 Pan Am/CSX is offering. A lot of the senior guys have bailed and many of the younger guys have scattered like cockroaches when you turn on the lights in a cheap motel room in the past few months. The labor shortage as a result of the sale is so bad, that when someone mentions the term "spare board" it brings back visions of the good ol'days when they could actually recrew trains rather than letting them sit for days at a time. And if what I am hearing is true, CSX will be pushing the attendance policy they have used elsewhere. So if you are in working for CSX, there will be plenty of openings...